1. [verb] To claim or demonstrate that someone is a bastard, or illegitimate.
2. [verb] To reduce from a higher to a lower state; to debase.
3. [verb] To introduce debased elements into.
4. [verb] To beget out of wedlock.
5. [verb] Change something so that its value declines; for example, art forms.
6. [verb] Declare a child to be illegitimate.